Liquid-fuel burner



Au 12, mm;

C. BUSH LIQUID FUEL BURNER Filed Sept. 23, 1922 gHNCHI- OL 670/1 Eda/6 Patented Aug. 112, I924,

CARL BUSH, OF HOLLYWOOD, CALIFORNIA, ASSIGNOR 0F ONE-HALF TO B. R. SKINNEE, 0F SEATTLE, WASHINGTON.

LIQUID-FUEL BURNER.

Application filed September 23, 1922. Serial no. 5so,o4a.

To all to hom it may concern Be it known that I, CARL BUSH, a citizen of the United States, residing at Hollywood, Los Angeles, in Los Angeles County and State of California, have invented certain new and useful Improvements in Liquid-Fuel Burners, of which the following is a specification.

My present invention relates to improvements in liquid. fuel burners especially adapted for use in the propuls'ion of automotive vehicles of the steam driven type. The subject matter of the invention involves means for initially heating and starting the burner in order that steam may be generated and the burner prepared for instant use, thus eliminating the necessity of extra priming devices, electric pre-heaters, &c. The invention consists in certain novel combinations and arrangements of parts embodying a burner of the overlying retort type in which gas or vapor is generated in a tube or chamber 111 co-nnect1on w1th the maln burner, in advance of ts delivery to the flame point or burner proper. Means are also provided for supplying and atomizing liquid fuel under pressure and mingled with air for initially heating or starting the burner, and other combinations and arrangements are provided for purposes as will be described.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention installed in a steam-power automobile, in which the parts are combined and arranged according to the best mode I have thus far devised for the practical application of the principles of my invention. It will be understood that this is one exemplification of the use of my invention, and that the subject matter of the invention is equally well adapted for other uses.

Figure 1 is a plan view showing diagrammatically the installation for a Stanley steamer.

Figure 2 is a View showing the combination and arrangement of parts of the equipment. I

In order that the relation of parts may readily be understood I have shown in Figure 1 a plan of so much of a steam propelled automobile as is necessary, the usual wheels 1 and chassis 2 being so designated, and

at the rear of the vehicle, and a compart-- ment 9 therein may be utilized for supplying a pilot burner when such device is used.

The fuel supply is furnished through the supply pipe 10 and induction pipe 11 the latter being connected directly to the retort or coil 7 A regulating and control valve 12 is interposed in the supply pipe,

and this valve which may be a three-way control device, is adapted to control the supply of liquid fuel from both; the main tank 8 and an auxiliary tank 13. When the vehicle is running under normal conditions the supply of fuel is taken direct from the tank 8. However in the initial starting of the burner for the generation of steam, an auxiliary equipment is utilized in which is included the supply tank 13 which contains liquid fuel as gasoline, kerosene, or other similar fuel. Air under pres sure is maintained in this tank which may be obtained from a supply station or compressed by a pump on the vehicle, and both air and liquid fuel are supplied from the auxiliary tank for initially generatin steam. An oil pipe 14, which is provided with a regulating valve 15, is connected to a mixing chamber within the cylinder 16, and an air pipe 17 havin a regulating valve 18 is also connected to t 1e mixing chamber from the upper part of the auxiliary tank. The mixing chamber has a branch pipe 19 connecting to the three valve or control valve 12 of the fuel supply.

Within the mixing chamber 16 are layers troduced under pressure, from the auxiliary tank to the mixing chamber. Air under pressure from the auxiliary tank is also introduced through the lower end of the mixing chambemandby this pressure the mixed air and oil are forced through the branch pipe 19, valve 12 and induction pipe 11 to the coil or retort 7. At the flame point the combustible mixture is lighted, and the mixed, atomized oil and air insure a hot flame-heat at the burner for initially heating. the vapplianoe and instantly generating gas in the boiler 3. The supply of oil and air may be regulated by the respective valves 15 and 18 and the required proportions for bestresults may be determined and fixed by 'x-these valves. -After the burner and retort have been properly heated and the generation of steam started, the control valve 12 may be manipulated to shut off the supply of oil and airfrom the auxiliary equipment and; open connections between the main supply tank 8 and the burner. Under these conditions, the liquid fuel is supplied from the tank 8, and passing through the heated retort 7 the oil is vaporized and burned in the burner as usual to maintain the steam supply.

Eromthe above description and drawing itwill be apparent that the raw gasoline or kerosene from the auxiliary i tank may be mixed with, the proper proportion of air, and this mixture forced to the burner which is thus utilized in the same manner for subsequently maintaining the steam supply.- A fire is instantly provided and'is suificiently hot to quickly heat the retort or vaporizing coil, t after which the supply of air may gradually be diminished and finally out off from the auxiliary tank with the auxiliary oil supply, and the main liquid fuel supply be substituted therefor.

It will be noted that the utilization of my invention eliminates the necessity for a pilot burner, but inasmuch as a pilot burner is in some instances desirable for keeping up steam or furnishing a comparatively small supply of heat, means may be provided for heating the retort 0r vaporizer from the main fire so that the pilot burner may be put into eflicient operation within a few minutes after the main fire has been ignited.

As is well known to drivers of steam propelled cars or automobiles, when a pilot burner is used, the pilot vaporizer or retort is frequently cooled while driving thus reducing the intensity of the pilot flame, but with the auxiliary equipment of my inven tion the cooled retort may quickly be heated thus giving almost automatically correct operating conditions for the pilot.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is- The combination with a liquid fuel burner of a fuel tank a supply pipe and an induction pipe, an auxiliary feed tank containing air under pressure, a mixing chamber between the auxiliary tank and induction pipe and connected to the latter, said chamber having an air pipe and a fuel pipe connection to said auxiliary tank. a control valve at the junction of the supply and induction pipes with the latters connection to the mixing chamber, and control valves in said air pipe and fuel pipe.

In testimony whereof I affix my signature.

CARL BUSH. 

